Injector Size
Thread Starter
Member
Joined: Oct 1999
Posts: 271
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From: Greenwood, IN USA
Car: 1990 Iroc/Z
Engine: LB9 305 TPI
Transmission: Borg Warner 5 speed
Injector Size
Is it okay to use 19lb injectors on a 350? Should I just turn the pressure up if I use them? I have a 305, but I'm thinking of doing a swap. What should I do?
Joined: Jul 1999
Posts: 75
Likes: 0
From: Eau Claire, WI US
Car: Two 1987 Iroc-Z Z28s
Engine: 5.7 TPI ZZ4 1.6 Roller Alum. Head
Axle/Gears: 3.73
That will work fine. The pros do that because smaller injectors with higher pressure gives a better spray pattern.
------------------
1987 Camaro Iroc-Z Z-28 with a TPI 5.7
-Ram Air,K&N Filterchargers, Gutted Mass
Airflow Sensor, Throttle Body Airfoil,
Edelbrock TES Headers and Y pipe, Gutted
Cat, 3 inch exhaust, Flowmaster
-Hypertech Thermomaster Chip, 160 deg Stat,
Adjustable Fuel Pressure Regulator
set at 50 psi, MSD Cap, MSD 8.5mm wires,
Accel Coil, MSD 6AL Ignition Box, Accel
Plugs
-Richmond 3.73 Gears, B&M Transpak,
B&M Rachet Shifter, Energy Suspension
Products
-Fiberglass Cowl Induction Hood,
Purple Neon License Plate Frame,
16X8 Rims with BFG 245 50's,
Pioneer Deck, 2 JL 12's in a Q-Logic
Box with a 300 Watt amp
What you can put between your ears,
no one can take away.
------------------
1987 Camaro Iroc-Z Z-28 with a TPI 5.7
-Ram Air,K&N Filterchargers, Gutted Mass
Airflow Sensor, Throttle Body Airfoil,
Edelbrock TES Headers and Y pipe, Gutted
Cat, 3 inch exhaust, Flowmaster
-Hypertech Thermomaster Chip, 160 deg Stat,
Adjustable Fuel Pressure Regulator
set at 50 psi, MSD Cap, MSD 8.5mm wires,
Accel Coil, MSD 6AL Ignition Box, Accel
Plugs
-Richmond 3.73 Gears, B&M Transpak,
B&M Rachet Shifter, Energy Suspension
Products
-Fiberglass Cowl Induction Hood,
Purple Neon License Plate Frame,
16X8 Rims with BFG 245 50's,
Pioneer Deck, 2 JL 12's in a Q-Logic
Box with a 300 Watt amp
What you can put between your ears,
no one can take away.
Joined: Sep 1999
Posts: 1,405
Likes: 8
From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
You will be okay as long as your 350 is fairly mild. All you will need to do is play around with the fuel pressure. If you are finding that you must raise the pressure over 60lbs then you might want to think about getting bigger injectors because you are approaching the max duty cycle of that injector.
Thread Starter
Member
Joined: Oct 1999
Posts: 271
Likes: 0
From: Greenwood, IN USA
Car: 1990 Iroc/Z
Engine: LB9 305 TPI
Transmission: Borg Warner 5 speed
Great! Thanks. I want whatever I build to be reliable, so hopefully I won't be into the 60lb area. I'm hoping that I won't need to go over 52psi. Would that be alright? Basically, I'll be building a stock internal and (maybe vette headed, if not L98 headed) engine. What do you think?
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